#include<iostream>
#include<conio.h>
using namespace std;
class Rectangle
{
	int width;
	int height;
public:
	Rectangle()
	{
	}
	Rectangle (int x,int y) : width(x), height (y)
	{
	}
	int area()
	{
		return width*height;
	}
	friend Rectangle duplicate (Rectangle param);
};
